Lexus UX 250h 2020, Owner'S Manual

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343
6-3. Do-it-yourself maintenance
6
M
ain
ten
an
ce an
d
ca
re
not start with the power switch turned off.
However, the hybrid system will operate
normally from the second attempt.
● The power switch mode is recorded by
the vehicle. If the 12-volt battery is recon-
nected, the vehicle will return the power
switch mode to the status it was in before
the 12-volt battery was disconnected.
Make sure to turn off the power before
disconnect the 12- volt battery. Take extra
care when connecting the 12-volt battery
if the power switch mode prior to dis-
charge is unknown.
If the system will not start even after multiple
attempts at all methods above, contact your
Lexus dealer.
1
Open the right side deck board.
(

P.298)
WARNING
■ Chemicals in the 12-volt battery
The 12-volt battery contains poisonous
and corrosive sulfuric acid and may pro-
duce hydrogen gas which is flammable
and explosive. To reduce the risk of death
or serious injury, take the following pre-
cautions while working on or near the 12-
volt battery:
● Do not cause sparks by touching the
12-volt battery terminals with tools.
●
Do not smoke or light a match near the
12-volt battery.
● Avoid contact with eyes, skin and
clothes.
● Never inhale or swallow electrolyte.
● Wear protective safety glasses when
working near the 12-volt battery.
●
Keep children away from the 12-volt
battery.
■ Where to safely charge the 12-volt
battery
Always charge the 12-volt battery in an
open area. Do not charge the 12-volt bat-
tery in a garage or closed room where
there is insufficient ventilation.
■ Emergency measures regarding
electrolyte
● If electrolyte gets in your eyes
Flush your eyes with clean water for at
least 15 minutes and get immediate
medical attention. If possible, continue
to apply water with a sponge or cloth
while traveling to the nearest medical
facility.
● If electrolyte gets on your skin
Wash the affected area thoroughly. If
you feel pain or burning, get medical
attention immediately.
● If electrolyte gets on your clothes
It can soak through clothing on to your
skin. Immediately take off the clothing
and follow the procedure above if nec-
essary.
● If you accidentally swallow electrolyte
Drink a large quantity of water or milk.
Get emergency medical attention
immediately.
■ When handling the 12-volt battery

P.409
NOTICE
■ When recharging the 12-volt battery
Never recharge the 12-volt battery while
the hybrid system is operating. Also, be
sure all accessories are turned off.
Removing the 12-volt battery
cover